JP3686356B2

JP3686356B2 - Transplanter seedling supply device

Info

Publication number: JP3686356B2
Application number: JP2001210352A
Authority: JP
Inventors: 強七戸
Original assignee: 株式会社ホクエイ
Priority date: 2001-07-11
Filing date: 2001-07-11
Publication date: 2005-08-24
Anticipated expiration: 2021-07-11
Also published as: JP2003023822A

Description

【０００１】
【発明が属する技術分野】
本発明は、紙筒苗のような集合苗から横一列に分離した苗を供給し二つの苗植付装置に受け渡して本圃に移植する移植機において、一箇所の苗受入部に供給された苗を左右に分けて二つの苗植付装置に受け渡す移植機の苗供給装置に関する。
【０００２】
【従来の技術】
複数条を植え付ける移植機において、装置を小型化し作業者を減らすために一つの苗供給装置から二つの苗植付装置に受け渡すものが知られている。
【０００３】
上記のような移植機の苗供給装置は、本発明者が特願２００１−２７５８９号として提案している。
【０００４】
この移植機の苗供給装置は、一箇所の苗受入部に互いに反対方向に回動する一対の苗受入ベルトを設け、一対の苗受入ベルトの送出端は各々の苗植付装置に連設し、一対の苗受入ベルトの間に苗を左右に分ける分割装置を設け、横一列の苗を一箇所の苗受入部としての一対の苗受入ベルトの両方に渡って供給し、供給された横一列の苗を分割装置が左右に分割し、一箇所の苗受入部に供給された苗を左右に分けて二つの苗植付装置に受け渡すものである。
【０００５】
そして、一対の苗受入ベルトの間に苗を供給できる空間が開いたときに次の苗を供給し、先行する苗列と後続の苗列の間に所定の間隔までの隙間が開いても次段の苗整列装置により密着した苗列として欠株無く植え付けできるものである。
【０００６】
上記移植機の苗受入部に供給される苗は、紙筒苗のような集合苗から横一列に列状に分離した苗であり、列状に分離するには実公平３−２７３７４号に示されるような、当板と当板に支架されて回動する円弧状針による分離具を用いる。この分離具では、一度に２３〜３５本の苗列として分離でき、作業者は５〜１０秒毎にこの苗列を供給する。
【０００７】
【発明が解決しようとする課題】
前記従来の技術の一対の苗受入ベルトでは、作業者が一度に３５本の苗を供給し、移植機が毎秒５本の苗を植え付けている場合は、７秒毎に苗を供給すれば良いことになる。通常の作業状態では、例えば６秒で分離作業を終え、１秒の待機時間で７秒毎に苗を供給するピッチタイムとなる。
【０００８】
しかし、苗の剥がれが悪かったりするとこのピッチタイム７秒を越えて例えば１０秒かかる場合もある。苗整列装置を装備した移植機では３秒分１５本の不足苗を苗整列装置より上流の搬送経路の速度を増加させて欠株無く植え付けしようとするが、この速度が増加するのは供給が遅れたことによる苗列の隙間が苗整列装置のセンサーに達したときで、遅れて供給したときよりかなり時間が経過した後となる。その間はピッチタイム７秒で苗列は搬送され、苗列の隙間がセンサーに達したとき突然の如く４秒のピッチタイムで供給するべく苗受入ベルトの速度が増加する。
【０００９】
そのため、上記従来例では遅れて供給したときより後に例えば６秒のピッチタイムで供給すると、後に５秒のピッチタイムで供給するべく苗受入ベルトの速度が増加し、これも６秒のピッチタイムで供給すると、後に６秒のピッチタイムで供給するべく苗受入ベルトの速度が増加する。作業者はそれまでの間は遅れを取り戻すことができず、突然に早いピッチタイムで供給しなければならない。
【００１０】
また、左右の苗整列装置で合わせて２０本の苗の隙間まで密着整列できるように設定されている場合、ピッチタイムが１１秒を越えてしまうと欠株が生じてしまうことになる。
【００１１】
そこで本発明は、作業者の苗供給が遅れた後すぐに遅れを取り戻すことができ、作業者の苗供給の遅れをより許容する、移植機の苗供給装置を提供することを目的とする。
【００１２】
【課題を解決するための手段】
請求項１の発明による移植機の苗供給装置は、紙筒苗のような集合苗から横一列に分離した苗Ｐを供給し二つの苗植付装置５に受け渡して本圃に移植する移植機において、一箇所の苗受入部20に互いに反対方向に回動する一対の苗受入ベルト14a，14bを設け、一対の苗受入ベルト14a，14bの送出端に各々苗受入搬送ベルト15a，15bを連ねて設け、一対の苗受入搬送ベルト15a，15bの送出端に各々の苗植付装置５を連ねて設け、苗受入ベルト14a，14bの搬送速度S1を苗受入搬送ベルト15a，15bの搬送速度S2より大とし、横一列の苗Ｐを一箇所の苗受入部20としての一対の苗受入ベルト14a，14bの両方に渡って供給し、供給された横一列の苗Ｐを一対の苗受入ベルト14a，14bの間で左右に分割し、一箇所の苗受入部20に供給された苗Ｐを左右に分けて二つの苗植付装置５に受け渡すものである。
【００１３】
請求項２の発明による移植機の苗供給装置は、苗受入ベルト14a，14bの搬送速度S1と苗受入搬送ベルト15a，15bの搬送速度S2を同一に変更可能としたものである。
【００１４】
【発明の実施の形態】
請求項１の発明では、一箇所の苗受入部20に互いに反対方向に回動する一対の苗受入ベルト14a，14bを設け、一対の苗受入ベルト14a，14bの送出端に各々苗受入搬送ベルト15a，15bを連ねて設け、苗受入ベルト14a，14bの搬送速度S1を苗受入搬送ベルト15a，15bの搬送速度S2より大としたから、少しの供給の遅れによる隙間は苗受入ベルト14a，14bと苗受入搬送ベルト15a，15bの間で密着する。また、苗整列装置の密着できる所定の隙間を越えて供給が遅れても、欠株無く植え付けできる。
【００１５】
また、横一列の苗Ｐを一箇所の苗受入部20としての一対の苗受入ベルト14a，14bの両方に渡って供給し、供給された横一列の苗Ｐを一対の苗受入ベルト14a，14bの間で左右に分割し、一箇所の苗受入部20に供給された苗Ｐを左右に分けて二つの苗植付装置５に受け渡すから、一箇所の苗受入部20に苗Ｐを供給するだけで左右に分割して二つの苗植付装置５に供給する。
【００１６】
請求項２の発明では、苗受入ベルト14a，14bの搬送速度S1と苗受入搬送ベルト15a，15bの搬送速度S2を同一に変更し、横一列の苗Ｐを二箇所の苗受入部としての左右の苗受入ベルト14a，14bと苗受入搬送ベルト15a，15bに渡って供給するから、作業者が二人のときは苗Ｐを二箇所の苗受入部に供給できる。
【００１７】
【実施例】
以下、本発明の一実施例を図面を参照して説明する。
【００１８】
集合苗として、紙筒集合育苗容器による根部が培土に覆われた紙筒苗を示している。この紙筒集合育苗容器は、展開すると六角柱状の上下が開口した多数の紙筒を、整然と糊で貼り合わせたものである。この紙筒中に培土を詰めて播種して育苗すると苗が生長して紙筒集合苗となり、移植時には適度の連結強度を保って個々の苗Ｐに分離可能に整然と連結している。
【００１９】
集合苗から横一列の列状の苗Ｐに分離する分離具30は、集合苗の側面に沿わせる当板31と、当板31の背面に支架されて回動する多数の円弧状針32と、当板31の背面中央の把手33と、円弧状針32を回動させるハンドル34とからなる。
【００２０】
作業者は把手33とハンドル34を持ち、当板31を集合苗の側面に沿わせ、円弧状針32を集合苗の紙筒上面から突き刺し、分離具30を手前下方に傾けて横一列の苗Ｐの全体を反らせて分離する。横一列に列状に分離した苗Ｐは、個々の苗相互が紙筒の六角の辺で結合されている。
【００２１】
つぎに、横一列に分離した苗Ｐを供給する苗供給装置10と、苗供給装置10が二つの苗植付装置５に受け渡し、苗植付装置５が本圃に移植する、二条を一度に本圃に移植する二畦用の移植機について説明する。
【００２２】
図１は移植機の平面図であり、トラクターに取り付けられて牽引され、図示下方向に進行する。前方には左右に長い機枠１を設け、機枠１の両端から後方に横機枠２を設ける。横機枠２の後部上方には苗台３を設け、苗台３の上にはコンテナに収納された集合苗を載せる。
【００２３】
左右の横機枠２の上方に渡る苗供給装置10を設け、機枠１の中央上方には作業者が座る座席４を設け、作業者は苗台３上の集合苗を横一列に分離して苗供給装置10に供給する。
【００２４】
苗供給装置10の下方に左右一対の苗植付装置５を設け、二つの苗植付装置５は各々苗供給装置10に連なり苗Ｐを供給され、二条を一度に本圃に移植する。
【００２５】
苗供給装置10には、左右一対の苗供給装置枠11a，11bが設けられ、苗供給装置枠11a，11bは横機枠２に固定される。
【００２６】
左右の苗供給装置枠11a，11bから、中央方向に水平に左右一対のベルト枠12a，12bを設け、左右のベルト枠12a，12bは中央部で連結固定される。
【００２７】
左右のベルト枠12a，12bの中央部側には一箇所の苗受入部20としての一対の苗受入ベルト14a，14bを設ける。一対の苗受入ベルト14a，14bはプーリー間に掛け渡されその上面が水平な一直線状とし、互いに反対方向つまりその上面が外側に回動する。
【００２８】
苗受入ベルト14a，14bの搬送始端のプーリーは可能な限り小径とし、その搬送始端の間はできるだけ狭くし、苗受入ベルト14a，14bの幅は苗Ｐの紙筒部と葉部の全部が載る広い幅とし、苗受入ベルト14a，14bの総長さは供給される苗Ｐ列の幅より長くする。
【００２９】
一対の苗受入ベルト14a，14bの送出端に各々苗受入搬送ベルト15a，15bを連ねて設け、一対の苗受入搬送ベルト15a，15bはプーリー間に掛け渡されその上面が苗受入ベルト14a，14bと同一な水平な一直線状とし、互いに反対方向つまりその上面が外側に回動する。
【００３０】
苗受入搬送ベルト15a，15bの搬送始端のプーリーは苗受入ベルト14a，14bの送出端のプーリーより可能な限り小径とし、その送出端と搬送始端の間はできるだけ狭くし、苗受入搬送ベルト15a，15bの幅は苗Ｐの紙筒部と葉部の全部が載る広い幅とし、片側の苗受入ベルト14a，14bと苗受入搬送ベルト15a，15bの合計長さは供給される苗Ｐ列の幅より長くする。一対の苗受入搬送ベルト15a，15bの送出端はベルト等を介して各々の苗植付装置５に連結される。
【００３１】
苗受入ベルト14a，14bと苗受入搬送ベルト15a，15bの機械進行方向前側、つまり苗Ｐの根先側にゲージ板13a，13bを設ける。ゲージ板13a，13bはベルト枠12a，12bに固定され、ゲージ板13a，13bは苗受入ベルト14a，14bに横一列に分離した苗Ｐを供給するに際し、苗Ｐの根先を当てて苗Ｐが苗受入ベルト14a，14bの所定位置に載るようにする。
【００３２】
苗受入ベルト14a，14bの送出端側のプーリーから機械進行方向後側に鎖車16a，16bを設け、苗受入搬送ベルト15a，15bの始端側のプーリーから機械進行方向後側に鎖車17a，17bを設ける。苗受入ベルト14a，14bの鎖車16a，16bと苗受入搬送ベルト15a，15bの鎖車17a，17bを駆動連結すると、苗受入ベルト14a，14bの搬送速度S1と苗受入搬送ベルト15a，15bの搬送速度S2が同一となる歯数比とする。
【００３３】
苗受入ベルト14a，14bの送出端側のプーリーから機械進行方向前側に鎖車18a，18bを設け、苗受入搬送ベルト15a，15bの始端側のプーリーから機械進行方向前側に鎖車19a，19bを設ける。苗受入ベルト14a，14bの鎖車18a，18bと苗受入搬送ベルト15a，15bの鎖車19a，19bを駆動連結すると、苗受入ベルト14a，14bの搬送速度S1が苗受入搬送ベルト15a，15bの搬送速度S2より大となる歯数比とする。
【００３４】
ここで苗受入ベルト14a，14bの搬送速度S1を変更可能としているのは、苗供給の作業者が一人の場合と二人の場合に対応するためで、作業者が一人の場合一箇所の苗受入部20としての一対の苗受入ベルト14a，14bの両方に渡って供給し、作業者が二人の場合二箇所の苗受入部としての左右の苗受入ベルト14a，14bと苗受入搬送ベルト15a，15bに渡って供給する。
【００３５】
なお作業者が一人の場合は、鎖車18a，18bと鎖車19a，19bを駆動連結し、鎖車16a，16bと鎖車17a，17bの連結を解いて、苗受入ベルト14a，14bの搬送速度S1が苗受入搬送ベルト15a，15bの搬送速度S2より３〜６割程度速くする。実施例では５割速くなるようにしたが、速すぎると苗が盛り上がる支障があり、遅すぎると先行する苗Ｐに追いつくことができない。
【００３６】
また作業者が二人の場合は、鎖車16a，16bと鎖車17a，17bを駆動連結し、鎖車18a，18bと鎖車19a，19bの連結を解いて、苗受入ベルト14a，14bの搬送速度S1と苗受入搬送ベルト15a，15bの搬送速度S2を同一とする。ここで搬送速度S1，S2を同一とするのは、作業者は先行する苗Ｐに密着して供給することが可能であり、密着した苗Ｐ列で苗受入ベルト14a，14bの搬送速度S1が速いと苗が盛り上がる懸念があるためである。
【００３７】
つぎに、苗供給装置10を装備した移植機の作動をその効果とともに説明する。
【００３８】
作業者が一人の場合は、苗受入ベルト14a，14bの搬送速度S1を苗受入搬送ベルト15a，15bの搬送速度S2より大とし、苗台３の立垂状態の集合苗から分離具30により苗Ｐを横一列に列状に分離し、一箇所の苗受入部20としての一対の苗受入ベルト14a，14bの両方に渡って倒置して供給する。
【００３９】
供給に際しては、横一列の苗を苗受入ベルト14a，14bの両方に均等に供給するのではなく、苗Ｐが不足がちな方に多い本数となるよう寄せて供給する。そして、苗受入ベルト14a，14bの上に苗Ｐを載せてから分離具30の円弧状針32を抜く。一対の苗受入ベルト14a，14bの両方に渡って供給された苗Ｐは一対の苗受入ベルト14a，14bが互いに反対方向に回動することにより一対の苗受入ベルト14a，14bの間で左右に分割される。
【００４０】
このとき、一箇所の苗受入部20に互いに反対方向に回動する一対の苗受入ベルト14a，14bを設け、一対の苗受入ベルト14a，14bの送出端に各々苗受入搬送ベルト15a，15bを連ねて設け、苗受入ベルト14a，14bの搬送速度S1を苗受入搬送ベルト15a，15bの搬送速度S2より大とし、少しの供給の遅れによる隙間は苗受入ベルト14a，14bと苗受入搬送ベルト15a，15bの間で密着するから、苗供給の遅れをすぐに取り戻すことができ、余裕をもって苗供給作業ができる。また、苗整列装置の密着できる所定の隙間を越えて供給が遅れても、欠株無く植え付けできるから、作業者の苗供給の遅れをより許容して欠株無く植え付けできる。
【００４１】
また、横一列の苗Ｐを一箇所の苗受入部20としての一対の苗受入ベルト14a，14bの両方に渡って供給し、供給された横一列の苗Ｐを一対の苗受入ベルト14a，14bの間で左右に分割し、一箇所の苗受入部20に供給された苗Ｐを左右に分けて二つの苗植付装置５に受け渡し、一箇所の苗受入部20に苗Ｐを供給するだけで左右に分割して二つの苗植付装置５に供給するから、一人の作業者で二条を一度に移植できる。
【００４２】
作業者が二人の場合は、苗受入ベルト14a，14bの搬送速度S1と苗受入搬送ベルト15a，15bの搬送速度S2を同一とし、苗台３の立垂状態の集合苗から分離具30により苗Ｐを横一列に列状に分離し、二箇所の苗受入部としての左右の苗受入ベルト14a，14bと苗受入搬送ベルト15a，15bに渡って倒置して供給する。
【００４３】
このとき、苗受入ベルト14a，14bの搬送速度S1と苗受入搬送ベルト15a，15bの搬送速度S2を同一に変更し、横一列の苗Ｐを二箇所の苗受入部としての左右の苗受入ベルト14a，14bと苗受入搬送ベルト15a，15bに渡って供給し、作業者が二人のときは苗Ｐを二箇所の苗受入部に無理なく供給できるから、作業者が増えると作業能率を向上させることができる。
【００４４】
つぎに、一対の苗受入搬送ベルト15a，15bの送出端に達した苗Ｐは、個々の苗Ｐに分離されて下方に搬送され、続いて水平反対方向に搬送され、苗選別装置により苗Ｐ列から葉の生えていない不良苗を除去し、苗整列装置により間隔の不揃いになった苗Ｐ列を一旦密着整列させた後、所定間隔毎に離間させて一対の縦搬送ベルトにより苗Ｐを二つの苗植付装置５に受け渡し、本圃に移植される。
【００４５】
以上の実施例では、苗Ｐとして紙筒集合育苗容器による紙筒集合苗のものを示したが、育苗培地そのものが育苗容器を形成している無機物繊維や高分子化合物によるものでも、育苗容器から取り出された苗でも、個々の苗相互が結合しているものであれば良い。
【００４６】
また、作業者が分離具30を使用して手で苗Ｐを供給する例を示したが、請求項１に係るの発明のように、横一列の苗Ｐを一箇所の苗受入部20としての一対の苗受入ベルト14a，14bの両方に渡って供給する場合には、自動供給装置により機械的に供給するようにしても良い。
【００４７】
また、一対の苗受入ベルトあるいは一対の苗受入搬送ベルトとして幅広の苗受入ベルト14a，14bと苗受入搬送ベルト15a，15bによる例を示したが、複数本のベルトとし段差無く連結しても良く、チェーンコンベアやローラーコンベアのような搬送手段としても良い。
【００４８】
また、一対の苗受入ベルト14a，14bが互いに反対方向に回動することにより一対の苗受入ベルト14a，14bの間で左右に分割される例を示したが、一対の苗受入ベルト14a，14bの間に別に分割手段を設けて分割した後左右に分けても良い。
【００４９】
【発明の効果】
請求項１の発明によれば、一箇所の苗受入部に互いに反対方向に回動する一対の苗受入ベルトを設け、一対の苗受入ベルトの送出端に各々苗受入搬送ベルトを連ねて設け、苗受入ベルトの搬送速度を苗受入搬送ベルトの搬送速度より大とし、少しの供給の遅れによる隙間は苗受入ベルトと苗受入搬送ベルトの間で密着するから、苗供給の遅れをすぐに取り戻すことができ、余裕をもって苗供給作業ができる。また、苗整列装置の密着できる所定の隙間を越えて供給が遅れても、欠株無く植え付けできるから、作業者の苗供給の遅れをより許容して欠株無く植え付けできる。
【００５０】
また、横一列の苗Ｐを一箇所の苗受入部としての一対の苗受入ベルトの両方に渡って供給し、供給された横一列の苗を一対の苗受入ベルトの間で左右に分割し、一箇所の苗受入部に供給された苗を左右に分けて二つの苗植付装置に受け渡し、一箇所の苗受入部に苗を供給するだけで左右に分割して二つの苗植付装置に供給するから、一人の作業者で二条を一度に移植できる。
【００５１】
請求項２の発明によれば、苗受入ベルトの搬送速度と苗受入搬送ベルトの搬送速度を同一に変更し、横一列の苗を二箇所の苗受入部としての左右の苗受入ベルトと苗受入搬送ベルトに渡って供給し、作業者が二人のときは苗を二箇所の苗受入部に無理なく供給できるから、作業者が増えると作業能率を向上させることができる。
【図面の簡単な説明】
【図１】移植機の苗供給装置の一実施例を示す平面図である。
【図２】その側面図である。
【図３】その要部を示す部分拡大正面図である。
【図４】図１の要部を示す部分拡大図である。
【図５】図４の要部を示す部分拡大図である。
【図６】図５の作動を示す図である。
【図７】図３の要部を示す部分拡大図である。
【図８】図７の作動を示す図である。
【図９】分離具の側面図である。
【図１０】図９の正面図である。
【符号の説明】
５苗植付装置
14a，14b 苗受入ベルト
15a，15b 苗受入搬送ベルト
20 一箇所の苗受入部
Ｐ苗
S1 搬送速度
S2 搬送速度[0001]
[Technical field to which the invention belongs]
The present invention relates to a seedling supplied to one seedling receiving part in a transplanting machine for supplying seedlings separated in a horizontal row from a collective seedling such as a paper tube seedling, transferring it to two seedling planting devices and transplanting it to the main field. The present invention relates to a seedling supply device for a transplanting machine that is divided into left and right and delivered to two seedling planting devices.
[0002]
[Prior art]
2. Description of the Related Art In a transplanting machine for planting a plurality of strips, one that transfers from one seedling supply device to two seedling planting devices in order to reduce the size of the device and reduce workers is known.
[0003]
The present inventor has proposed a seedling supply device for a transplanter as described above as Japanese Patent Application No. 2001-27589.
[0004]
The seedling supply device of this transplanter is provided with a pair of seedling receiving belts that rotate in opposite directions at one seedling receiving portion, and the sending ends of the pair of seedling receiving belts are connected to each seedling transplanting device. , A splitting device that divides the seedling into left and right between the pair of seedling receiving belts is provided, and a horizontal row of seedlings is supplied over both of the pair of seedling receiving belts as one seedling receiving portion, and the supplied horizontal row The splitting device divides the seedling into left and right, and the seedling supplied to one seedling receiving part is divided into left and right and delivered to two seedling planting devices.
[0005]
Then, the next seedling is supplied when a space capable of supplying seedlings is opened between the pair of seedling receiving belts, and even if a gap up to a predetermined interval is opened between the preceding seedling row and the subsequent seedling row. It can be planted as a seedling line in close contact with a stage seedling aligning device without missing.
[0006]
The seedlings supplied to the seedling receiving part of the transplanter are seedlings separated from the gathered seedlings such as paper tube seedlings in a horizontal row, and in order to separate them in a row, it is shown in Japanese Utility Model Publication No. 3-27374. And a separating tool using an arc-shaped needle that is supported by the plate and rotates. With this separating tool, 23 to 35 seedling rows can be separated at a time, and an operator supplies this seedling row every 5 to 10 seconds.
[0007]
[Problems to be solved by the invention]
In the pair of seedling receiving belts according to the conventional technique, when the operator supplies 35 seedlings at a time and the transplanter is planting 5 seedlings per second, the seedlings may be supplied every 7 seconds. It will be. In a normal working state, for example, the separation work is completed in 6 seconds, and a pitch time for supplying seedlings every 7 seconds with a waiting time of 1 second is obtained.
[0008]
However, if the seedling is badly peeled off, it may take 10 seconds, for example, exceeding the pitch time of 7 seconds. The transplanter equipped with the seedling alignment device tries to plant 15 short seedlings for 3 seconds by increasing the speed of the transport route upstream from the seedling alignment device, and this speed increases because of the supply. When the gap in the seedling row due to the delay reaches the sensor of the seedling aligning device, it is after a considerable time has passed since the delayed feeding. In the meantime, the seedling row is transported with a pitch time of 7 seconds, and the speed of the seedling receiving belt is increased so that the seedling row is suddenly supplied with a pitch time of 4 seconds when the gap between the seedling rows reaches the sensor.
[0009]
For this reason, in the conventional example, if the supply is delayed, for example, with a pitch time of 6 seconds, the speed of the seedling receiving belt is increased so as to be supplied with a pitch time of 5 seconds later. When supplied, the speed of the seedling receiving belt increases to be supplied later with a pitch time of 6 seconds. Until then, the operator cannot recover the delay and has to supply suddenly at a fast pitch time.
[0010]
In addition, when the left and right seedling aligning apparatuses are set so that they can be closely aligned up to a gap of 20 seedlings, a stock loss will occur if the pitch time exceeds 11 seconds.
[0011]
Accordingly, an object of the present invention is to provide a seedling supply device for a transplanter that can recover the delay immediately after the worker's seedling supply is delayed, and further tolerates the delay in the worker's seedling supply.
[0012]
[Means for Solving the Problems]
The seedling supply device of the transplanting machine according to the invention of claim 1 is a transplanting machine that supplies seedlings P separated in a horizontal row from a gathered seedling such as a paper tube seedling, transfers them to two seedling planting devices 5 and transplants them to the main field. A pair of seedling receiving belts 14a and 14b that rotate in opposite directions is provided at one seedling receiving portion 20, and the seedling receiving and conveying belts 15a and 15b are connected to the sending ends of the pair of seedling receiving belts 14a and 14b, respectively. Each seedling planting device 5 is connected to the delivery ends of the pair of seedling receiving and conveying belts 15a and 15b, and the conveying speed S1 of the seedling receiving belts 14a and 14b is set higher than the conveying speed S2 of the seedling receiving and conveying belts 15a and 15b. A horizontal row of seedlings P is supplied over both a pair of seedling receiving belts 14a, 14b as a single seedling receiving portion 20, and the supplied horizontal row of seedlings P is supplied to a pair of seedling receiving belts 14a, 14b is divided into left and right, and the seedling P supplied to one seedling receiving unit 20 is divided into two left and right seedling planting devices 5 is handed over.
[0013]
The seedling supply device for a transplanter according to the invention of claim 2 can change the transport speed S1 of the seedling receiving belts 14a, 14b and the transport speed S2 of the seedling receiving transport belts 15a, 15b to be the same.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
According to the first aspect of the present invention, a pair of seedling receiving belts 14a and 14b that rotate in opposite directions is provided at one seedling receiving portion 20, and the seedling receiving and conveying belts are provided at the sending ends of the pair of seedling receiving belts 14a and 14b, respectively. 15a and 15b are provided in a row, and the conveying speed S1 of the seedling receiving belts 14a and 14b is made larger than the conveying speed S2 of the seedling receiving and conveying belts 15a and 15b. And the seedling receiving and conveying belts 15a and 15b. In addition, even if the supply is delayed beyond a predetermined gap where the seedling alignment device can be in close contact, planting can be carried out without any lack of stock.
[0015]
Further, the horizontal row of seedlings P is supplied to both the pair of seedling receiving belts 14a and 14b as the seedling receiving portion 20 at one place, and the supplied horizontal row of seedlings P is supplied to the pair of seedling receiving belts 14a and 14b. Since the seedling P supplied to one seedling receiving part 20 is divided into left and right parts and delivered to the two seedling planting devices 5, the seedling P is supplied to one seedling receiving part 20 By just dividing, it divides into right and left and supplies it to the two seedling planting apparatuses 5.
[0016]
In the invention of claim 2, the conveying speed S1 of the seedling receiving belts 14a and 14b and the conveying speed S2 of the seedling receiving and conveying belts 15a and 15b are changed to be the same, and the horizontal row of seedlings P are used as two seedling receiving portions. The seedling receiving belts 14a and 14b and the seedling receiving and conveying belts 15a and 15b are supplied so that the seedling P can be supplied to two seedling receiving portions when there are two workers.
[0017]
【Example】
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0018]
A paper tube seedling in which the root portion of the paper tube collective seedling container is covered with culture soil is shown as a collective seedling. This paper tube collective seedling container is one in which a large number of hexagonal column-shaped upper and lower open paper tubes are neatly pasted together with glue when deployed. When the seedlings are packed and seeded in this paper tube and seeded, the seedlings grow to become a paper tube aggregate seedling, and at the time of transplantation, the seedlings are connected in an orderly manner so as to be separable while maintaining an appropriate connection strength.
[0019]
Separating tool 30 for separating the seedlings P into the horizontal row of seedlings P includes an abutting plate 31 along the side surface of the assembling seedling, and a number of arcuate needles 32 that are supported by the back of the abutting plate 31 and rotate. The handle 33 includes a handle 33 at the center of the back surface of the contact plate 31 and a handle 34 for rotating the arcuate needle 32.
[0020]
The operator holds the handle 33 and the handle 34, places the abutment plate 31 along the side surface of the collective seedling, pierces the arc-shaped needle 32 from the upper surface of the paper tube of the collective seedling, and tilts the separating tool 30 downward and forward in a row. The whole P is warped and separated. The seedlings P separated in a horizontal row are connected to each other at the hexagonal sides of the paper tube.
[0021]
Next, the seedling supply device 10 that supplies the seedlings P separated in a horizontal row and the seedling supply device 10 deliver the two seedling planting devices 5, and the seedling planting device 5 transplants them into the main field. I will explain the transplanting machine for two cages.
[0022]
FIG. 1 is a plan view of the transplanter, which is attached to a tractor and pulled, and proceeds downward in the figure. A long machine casing 1 is provided on the left and right in the front, and a horizontal machine casing 2 is provided on the rear from both ends of the machine casing 1. A seedling stand 3 is provided above the rear part of the horizontal machine frame 2, and the seedlings stored in a container are placed on the seedling stand 3.
[0023]
A seedling supply device 10 is provided over the left and right horizontal machine frames 2, and a seat 4 on which an operator sits is provided above the center of the machine frame 1, and the operator separates the collected seedlings on the seedling table 3 into a horizontal row. To the seedling supply device 10.
[0024]
A pair of left and right seedling planting devices 5 are provided below the seedling feeding device 10, and the two seedling planting devices 5 are connected to the seedling feeding device 10 and are fed with the seedlings P, and two strips are transplanted to the mainland at once.
[0025]
The seedling supply device 10 is provided with a pair of left and right seedling supply device frames 11 a and 11 b, and the seedling supply device frames 11 a and 11 b are fixed to the horizontal machine frame 2.
[0026]
A pair of left and right belt frames 12a and 12b are provided horizontally from the left and right seedling supply device frames 11a and 11b in the central direction, and the left and right belt frames 12a and 12b are connected and fixed at the center.
[0027]
A pair of seedling receiving belts 14a and 14b is provided as a single seedling receiving portion 20 on the center side of the left and right belt frames 12a and 12b. The pair of seedling receiving belts 14a and 14b are stretched between pulleys, and the upper surfaces thereof are in a horizontal straight line, and the opposite directions, that is, the upper surfaces thereof rotate outward.
[0028]
The pulley at the conveyance start end of the seedling receiving belts 14a and 14b is made as small as possible, the gap between the conveyance start ends is made as narrow as possible, and the width of the seedling receiving belts 14a and 14b is placed on the paper tube portion and the leaf portion of the seedling P. The width is wide, and the total length of the seedling receiving belts 14a and 14b is longer than the width of the seedling P row to be supplied.
[0029]
A pair of seedling receiving and conveying belts 15a and 15b are provided at the delivery ends of the pair of seedling receiving belts 14a and 14b, respectively. The pair of seedling receiving and conveying belts 15a and 15b are spanned between pulleys, and the upper surfaces thereof are seedling receiving belts 14a and 14b. And the same horizontal straight line, and the opposite directions, that is, the upper surfaces thereof rotate outward.
[0030]
The pulley at the beginning of conveyance of the seedling receiving and conveying belts 15a and 15b is made as small as possible as compared with the pulley at the sending end of the seedling receiving belts 14a and 14b, and the gap between the sending end and the conveying start end is made as narrow as possible, and the seedling receiving and conveying belt 15a, The width of 15b is a wide width on which the paper tube portion and the leaf portion of the seedling P are all placed, and the total length of the seedling receiving belts 14a and 14b on one side and the seedling receiving and conveying belts 15a and 15b is the width of the supplied seedling P row. Make it longer. The sending ends of the pair of seedling receiving and conveying belts 15a and 15b are connected to the respective seedling planting devices 5 through belts or the like.
[0031]
Gauge plates 13a and 13b are provided on the front side of the seedling receiving belts 14a and 14b and the seedling receiving and conveying belts 15a and 15b in the machine traveling direction, that is, on the root side of the seedling P. The gauge plates 13a, 13b are fixed to the belt frames 12a, 12b, and the gauge plates 13a, 13b apply the seedling P by applying the root of the seedling P to the seedling receiving belts 14a, 14b. Is placed on a predetermined position of the seedling receiving belts 14a and 14b.
[0032]
Chain wheels 16a and 16b are provided on the rear side in the machine traveling direction from the pulleys on the sending end side of the seedling receiving belts 14a and 14b, and the chain wheel 17a on the rear side in the machine traveling direction from the pulleys on the starting end side of the seedling receiving and conveying belts 15a and 15b. 17b is provided. When the chain wheels 16a and 16b of the seedling receiving belts 14a and 14b and the chain wheels 17a and 17b of the seedling receiving and conveying belts 15a and 15b are driven and connected, the conveying speed S1 of the seedling receiving belts 14a and 14b and the seedling receiving and conveying belts 15a and 15b The tooth number ratio is such that the conveyance speed S2 is the same.
[0033]
The pulleys 18a and 18b are provided on the front side in the machine traveling direction from the pulleys on the sending end side of the seedling receiving belts 14a and 14b, and the chain wheels 19a and 19b are provided on the front side in the machine traveling direction from the pulleys on the starting end side of the seedling receiving and conveying belts 15a and 15b. Provide. When the chain wheels 18a and 18b of the seedling receiving belts 14a and 14b and the chain wheels 19a and 19b of the seedling receiving and conveying belts 15a and 15b are driven and connected, the conveying speed S1 of the seedling receiving belts 14a and 14b is changed to that of the seedling receiving and conveying belts 15a and 15b. The tooth ratio is greater than the conveyance speed S2.
[0034]
The reason why the conveying speed S1 of the seedling receiving belts 14a and 14b can be changed is to cope with the case where there are one and two workers supplying seedlings. Supplying over both of the pair of seedling receiving belts 14a and 14b as the receiving section 20, and when there are two workers, the left and right seedling receiving belts 14a and 14b and the seedling receiving and conveying belt 15a as two seedling receiving sections , Supply over 15b.
[0035]
When there is only one worker, the chain wheels 18a and 18b and the chain wheels 19a and 19b are driven and connected, the chain wheels 16a and 16b are disconnected from the chain wheels 17a and 17b, and the seedling receiving belts 14a and 14b are conveyed. The speed S1 is about 30 to 60% faster than the conveying speed S2 of the seedling receiving and conveying belts 15a and 15b. In the embodiment, it is set to be 50% faster. However, if it is too fast, there is a problem that the seedlings are raised, and if it is too late, it cannot catch up with the preceding seedling P.
[0036]
When there are two workers, the chain wheels 16a, 16b and the chain wheels 17a, 17b are driven and connected, and the chain wheels 18a, 18b and the chain wheels 19a, 19b are disconnected, and the seedling receiving belts 14a, 14b are connected. The conveyance speed S1 and the conveyance speed S2 of the seedling receiving conveyance belts 15a and 15b are the same. Here, the conveying speeds S1 and S2 are the same because the operator can closely supply the preceding seedling P, and the conveying speed S1 of the seedling receiving belts 14a and 14b is determined by the closely aligned seedling P row. This is because there is a concern that seedlings will rise if it is fast.
[0037]
Next, the operation of the transplanter equipped with the seedling supply device 10 will be described together with its effects.
[0038]
When there is only one worker, the conveying speed S1 of the seedling receiving belts 14a and 14b is set to be larger than the conveying speed S2 of the seedling receiving and conveying belts 15a and 15b, and the seedling 3 is used to separate the seedlings from the standing seedlings of the seedling stand 3 P is separated into a horizontal row and supplied by being inverted over both of the pair of seedling receiving belts 14a and 14b as one seedling receiving portion 20.
[0039]
At the time of supply, the seedlings in a horizontal row are not supplied evenly to both the seedling receiving belts 14a and 14b, but are supplied so that the number of seedlings P tends to be large for those who tend to be deficient. Then, after placing the seedling P on the seedling receiving belts 14a, 14b, the arc-shaped needle 32 of the separating tool 30 is pulled out. The seedling P supplied over both the pair of seedling receiving belts 14a and 14b is moved left and right between the pair of seedling receiving belts 14a and 14b by the pair of seedling receiving belts 14a and 14b rotating in opposite directions. Divided.
[0040]
At this time, a single seedling receiving portion 20 is provided with a pair of seedling receiving belts 14a and 14b that rotate in opposite directions, and seedling receiving and conveying belts 15a and 15b are provided at the sending ends of the pair of seedling receiving belts 14a and 14b, respectively. The conveying speed S1 of the seedling receiving belts 14a and 14b is set higher than the conveying speed S2 of the seedling receiving and conveying belts 15a and 15b, and a gap due to a slight delay in supply is established between the seedling receiving belts 14a and 14b and the seedling receiving conveying belt 15a. , 15b, the seedling supply delay can be recovered immediately, and the seedling supply operation can be performed with a margin. Moreover, even if the supply is delayed beyond a predetermined gap where the seedling aligning apparatus can be in close contact, planting can be performed without any missing plant, so that the delay in supplying the seedling of the operator can be allowed more and planting can be performed without any missing plant.
[0041]
Further, the horizontal row of seedlings P is supplied to both the pair of seedling receiving belts 14a and 14b as the seedling receiving portion 20 at one place, and the supplied horizontal row of seedlings P is supplied to the pair of seedling receiving belts 14a and 14b. The seedling P is divided into left and right, the seedling P supplied to one seedling receiving unit 20 is divided into left and right and delivered to the two seedling planting devices 5, and only the seedling P is supplied to one seedling receiving unit 20 Is divided into right and left and supplied to the two seedling planting devices 5, so that one worker can transplant two strips at a time.
[0042]
When there are two workers, the conveying speed S1 of the seedling receiving belts 14a and 14b and the conveying speed S2 of the seedling receiving and conveying belts 15a and 15b are the same, and the separating seed 30 is used to separate the seedling stand 3 from the suspended seedling. The seedlings P are separated in a horizontal row, and supplied by being inverted over the left and right seedling receiving belts 14a and 14b and the seedling receiving and conveying belts 15a and 15b as two seedling receiving portions.
[0043]
At this time, the conveying speed S1 of the seedling receiving belts 14a and 14b and the conveying speed S2 of the seedling receiving and conveying belts 15a and 15b are changed to be the same, and the left and right seedling receiving belts serving as the two seedling receiving portions are arranged in one horizontal row. 14a and 14b and the seedling receiving and conveying belts 15a and 15b are supplied, and when there are two workers, the seedling P can be supplied without difficulty to the two seedling receiving parts, so the work efficiency increases as the number of workers increases. Can be made.
[0044]
Next, the seedlings P that have reached the delivery ends of the pair of seedling receiving and conveying belts 15a and 15b are separated into individual seedlings P and conveyed downward, and subsequently conveyed in the opposite horizontal direction. After removing defective seedlings with no leaves from the row, the seedling alignment device temporarily aligns and aligns the seedling P rows with irregular intervals, and then separates the seedlings P with a pair of vertical transport belts at predetermined intervals. It is delivered to the two seedling planting devices 5 and transplanted to the main field.
[0045]
In the above embodiment, the seedling P is shown as the seedling P in the paper tube assembly seedling by the paper tube assembly seedling container. However, even if the seedling culture medium itself is made of the inorganic fiber or polymer compound forming the seedling container, Even if the seedlings taken out are combined with each other, it is sufficient.
[0046]
Moreover, although the operator showed the example which supplies the seedling P by hand using the separating tool 30, like the invention which concerns on Claim 1, the horizontal row of seedling P is made into the seedling receiving part 20 of one place. When supplying over both of the pair of seedling receiving belts 14a and 14b, it may be mechanically supplied by an automatic supply device.
[0047]
In addition, although the example using the wide seedling receiving belts 14a and 14b and the seedling receiving and conveying belts 15a and 15b is shown as a pair of seedling receiving belts or a pair of seedling receiving and conveying belts, a plurality of belts may be connected without a step. Further, it may be a conveying means such as a chain conveyor or a roller conveyor.
[0048]
In addition, an example is shown in which the pair of seedling receiving belts 14a and 14b is divided into the left and right between the pair of seedling receiving belts 14a and 14b by rotating in opposite directions, but the pair of seedling receiving belts 14a and 14b Alternatively, a dividing unit may be provided between the two and then divided into left and right.
[0049]
【The invention's effect】
According to the invention of claim 1, a pair of seedling receiving belts that rotate in opposite directions to each other at a single seedling receiving portion are provided, and a seedling receiving and conveying belt is provided at the sending end of the pair of seedling receiving belts, Make the seedling receiving belt transport speed faster than the seedling receiving transport belt transport speed, and the gap due to a slight delay in supply will be in close contact between the seedling receiving belt and the seedling receiving transport belt, so that the seedling supply delay can be recovered immediately. The seedling supply work can be done with a margin. Moreover, even if the supply is delayed beyond a predetermined gap where the seedling aligning apparatus can be in close contact, planting can be performed without any missing plant, so that the delay in supplying the seedling of the operator can be allowed more and planting can be performed without any missing plant.
[0050]
Further, the horizontal row of seedlings P is supplied over both of the pair of seedling receiving belts as a single seedling receiving portion, and the supplied horizontal row of seedlings is divided into a left and right between the pair of seedling receiving belts, The seedling supplied to one seedling receiving part is divided into left and right parts and delivered to two seedling planting devices, and it is divided into right and left by simply supplying seedlings to one seedling receiving part and is divided into two seedling planting equipments Since it is supplied, two workers can be transplanted at one time by one worker.
[0051]
According to the invention of claim 2, the conveying speed of the seedling receiving belt and the conveying speed of the seedling receiving and conveying belt are changed to be the same, and the right and left seedling receiving belts and the seedling receiving as the two rows of seedling receiving portions Since the seedling can be supplied without difficulty to two seedling receiving portions when the number of workers is two when the number of workers is two, the work efficiency can be improved.
[Brief description of the drawings]
FIG. 1 is a plan view showing an embodiment of a seedling supply device of a transplanter.
FIG. 2 is a side view thereof.
FIG. 3 is a partially enlarged front view showing the main part.
4 is a partially enlarged view showing a main part of FIG. 1. FIG.
FIG. 5 is a partially enlarged view showing a main part of FIG. 4;
6 is a diagram illustrating the operation of FIG. 5. FIG.
7 is a partially enlarged view showing a main part of FIG. 3. FIG.
FIG. 8 is a diagram illustrating the operation of FIG.
FIG. 9 is a side view of the separating tool.
10 is a front view of FIG. 9. FIG.
[Explanation of symbols]
5 Seedling planting equipment
14a, 14b Seedling acceptance belt
15a, 15b Seedling receiving belt
20 One seedling receiving part P Seedling
S1 Transport speed
S2 Transport speed

Claims

In a transplanter that supplies seedlings separated in a horizontal row from an aggregate seedling such as a paper tube seedling, transfers it to two seedling planting devices, and transplants it to the main farm, a pair that rotates in opposite directions to one seedling receiving part The seedling receiving belt is provided, the seedling receiving and conveying belts are connected to the sending ends of the pair of seedling receiving belts, the seedling planting devices are connected to the sending ends of the pair of seedling receiving and conveying belts, and the seedling receiving belt is provided. The feeding speed is larger than the feeding speed of the seedling receiving and conveying belt, and the horizontal row of seedlings is supplied over both of the pair of seedling receiving belts as one seedling receiving portion, and the supplied horizontal row of seedlings are paired. The seedling supply device of the transplanting machine which divides the seedling supplied to one seedling receiving section into left and right parts and delivers them to two seedling planting devices.

The seedling supply device for a transplanter according to claim 1, wherein the seedling receiving belt transport speed and the seedling receiving transport belt transport speed can be changed to be the same.